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What is the Least Common Multiple of 40223 and 40242?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 40223 and 40242 is 85192314.

LCM(40223,40242) = 85192314

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Least Common Multiple of 40223 and 40242 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40223 and 40242, than apply into the LCM equation.

GCF(40223,40242) = 19
LCM(40223,40242) = ( 40223 × 40242) / 19
LCM(40223,40242) = 1618653966 / 19
LCM(40223,40242) = 85192314

Least Common Multiple (LCM) of 40223 and 40242 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40223 and 40242. First we will calculate the prime factors of 40223 and 40242.

Prime Factorization of 40223

Prime factors of 40223 are 19, 29, 73. Prime factorization of 40223 in exponential form is:

40223 = 191 × 291 × 731

Prime Factorization of 40242

Prime factors of 40242 are 2, 3, 19, 353. Prime factorization of 40242 in exponential form is:

40242 = 21 × 31 × 191 × 3531

Now multiplying the highest exponent prime factors to calculate the LCM of 40223 and 40242.

LCM(40223,40242) = 191 × 291 × 731 × 21 × 31 × 3531
LCM(40223,40242) = 85192314